DE102005036430A1 - Tank heater e.g. for urea tank of internal combustion engine, has housing in which PTC heating element is arranged and has temperature sensor to determine requirement of heating - Google Patents
Tank heater e.g. for urea tank of internal combustion engine, has housing in which PTC heating element is arranged and has temperature sensor to determine requirement of heating Download PDFInfo
- Publication number
- DE102005036430A1 DE102005036430A1 DE102005036430A DE102005036430A DE102005036430A1 DE 102005036430 A1 DE102005036430 A1 DE 102005036430A1 DE 102005036430 A DE102005036430 A DE 102005036430A DE 102005036430 A DE102005036430 A DE 102005036430A DE 102005036430 A1 DE102005036430 A1 DE 102005036430A1
- Authority
- DE
- Germany
- Prior art keywords
- tank heater
- heater according
- housing
- sleeve
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/78—Heating arrangements specially adapted for immersion heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/148—Arrangement of sensors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
Description
Die Erfindung betrifft eine Tankheizung, insbesondere für einen Harnstofftank einer Verbrennungskraftmaschine.The The invention relates to a tank heater, in particular for a Urea tank of an internal combustion engine.
Harnstoff wird von einem Abgasreinigungskatalysator als Ammoniaklieferant benötigt. Kraftfahrzeuge haben deshalb standardmäßig einen Harnstofftank, in dem Harnstofflösung für den Abgasreinigungskatalysator gespeichert wird. Bei Frost kann die Harnstofflösung einfrieren, so daß eine Tankheizung benötigt wird, um die Harnstofflösung möglichst rasch aufzutauen, damit der für den Betrieb des Katalysators benötigte Harnstoff zur Verfügung gestellt werden kann.urea is from an exhaust gas purification catalyst as an ammonia supplier needed. Motor vehicles therefore have a standard urea tank, in the urea solution for the Emission control catalyst is stored. In frost, the urea solution Freeze, so that a Tank heating needed is going to the urea solution as quickly as possible thaw, so that for required the operation of the catalyst Urea available can be made.
Aufgabe der Erfindung ist es, einen kostengünstigen Weg aufzuzeigen, wie einerseits ein Abgasreinigungskatalysator einer Verbrennungskraftmaschine bei Temperaturen unter dem Gefrierpunkt schnell in einen betriebsbereiten Zustand versetzt werden kann und andererseits eine unnötige Erwärmung, insbesondere eine Überhitzung, von Harnstofflösung vermieden werden kann.task The invention is to show a cost effective way how on the one hand, an exhaust gas purification catalyst of an internal combustion engine at temperatures below freezing quickly into an operational state Condition can be offset and on the other hand unnecessary heating, in particular an overheating, of urea solution can be avoided.
Diese Aufgabe wird gelöst durch eine Tankheizung umfassend ein Gehäuse, in dem mindestens ein PTC-Heizelement angeordnet ist, und einen Temperatursensor, um den Bedarf einer Beheizung zu ermitteln, wobei der Temperatursensor in einer an dem Gehäuse befestigten Hülse angeordnet ist.These Task is solved by a tank heater comprising a housing in which at least one PTC heating element is arranged, and a temperature sensor to the Need to determine heating, with the temperature sensor in one on the housing attached sleeve is arranged.
Bei einer erfindungsgemäßen Tankheizung wird außerordentlich kostengünstig eine thermische Ankopplung eines Temperatursensors an zu beheizende Flüssigkeit erreicht, indem der Temperatursensor in einer an dem Gehäuse befestigten Hülse angeordnet ist. Auf diese Weise wird eine kompakte Einheit geschaffen, die mit wenigen Handgriffen in einen Flüssigkeitstank eingebaut werden kann.at a tank heater according to the invention is extraordinarily economical a thermal coupling of a temperature sensor to be heated liquid achieved by the temperature sensor in a mounted on the housing Sleeve arranged is. In this way, a compact unit is created which be installed in a liquid tank with a few simple steps can.
Bevorzugt wird als Temperatursensor eine NTC-Pille ohne eigenes Gehäuse verwendet. Äußerst bevorzugt ist der Temperatursensor in der Hülse in eine gut wärmeleitfähige Masse, insbesondere ein Elastomer, eingebettet.Prefers is used as a temperature sensor NTC pill without its own housing. Extremely preferred is the temperature sensor in the sleeve in a good thermal conductivity mass, in particular an elastomer embedded.
Weitere Vorteile einer erfindungsgemäßen Tankheizung sind:
- – Die Hülse kann kostengünstig als Teil des Gehäuses der Tankheizung ausgebildet werden. Auf ein separates Gehäuse, wie es bei handelsüblichen NTC-Sensoren vorhanden ist, kann verzichtet werden.
- – Durch die Hülse lassen sich der Temperatursensor und die Zuleitungen vor Flüssigkeitseinwirkung schützen.
- – Der Temperatursensor ist durch die Hülse sicher befestigt und ist auch bei großen Vibrationen mechanisch gut geschützt. Dies gilt insbesondere bei Einbettung in ein Elastomer, beispielsweise ein Silikonelastomer oder eine Polyuretan-Vergußmasse.
- – In der Hülse kann ein NTC-Sensor angeordnet und in eine gut wärmeleitfähige Masse eingebettet werden, ohne daß dieser beeinträchtigt wird. Bei dem im Stand der Technik gebräuchlichen Umspritzen von NTC-Sensoren mit Kunststoff werden die Sensoren stark erwärmt, was zu Änderungen der Temperaturcharakteristik und somit größeren Toleranzen, also weniger präzisen Messungen, führt.
- - The sleeve can be inexpensively formed as part of the housing of the tank heater. On a separate housing, as it is available with commercially available NTC sensors, can be dispensed with.
- - Through the sleeve, the temperature sensor and the supply lines can be protected from the influence of liquids.
- - The temperature sensor is securely fastened by the sleeve and is mechanically well protected even with large vibrations. This is especially true when embedded in an elastomer, such as a silicone elastomer or a polyurethane sealant.
- - In the sleeve, an NTC sensor can be arranged and embedded in a good thermal conductivity mass, without this being affected. In the customary in the prior art encapsulation of NTC sensors with plastic, the sensors are strongly heated, which leads to changes in the temperature characteristic and thus larger tolerances, ie less precise measurements.
Zwar läßt sich mit einem Temperatursensor, der in einem separaten Gehäuse, das von der Tankheizung beabstandet ist, in den meisten Fällen die Temperatur der in dem Tank enthaltenen Flüssigkeit mit einer größeren Genauigkeit bestimmen, jedoch ist es für viele Anwendungen, insbesondere für eine Tankheizung für einen Harnstofftank einer Verbrennungskraftmaschine, ausreichend, wenn mit dem Temperatursensor festgestellt werden kann, ob die Flüssigkeit eingefroren ist. Dies läßt sich mit einer erfindungsgemäßen Tankheizung außerordentlich kostengünstig mit hinreichender Zuverlässigkeit feststellen, so daß auch bei Temperaturen unter dem Gefrierpunkt in kurzer Zeit die für den Betrieb eines Abgasreinigungskatalysators eines Kraftfahrzeugs benötigte flüssige Harnstofflösung zur Verfügung gestellt werden kann.Though let yourself with a temperature sensor in a separate housing, the is spaced from the tank heater, in most cases the temperature the liquid contained in the tank with a greater accuracy determine, however it is for many applications, especially for a tank heater for one Urea tank of an internal combustion engine, sufficient, if With the temperature sensor can be determined whether the liquid is frozen. This can be with a tank heater according to the invention extraordinarily economical with reasonable reliability notice, so that too at temperatures below freezing in a short time the for operation an exhaust gas purification catalyst of a motor vehicle required liquid urea solution for disposal can be made.
Weitere Einzelheiten und Vorteile der Erfindung werden anhand eines Ausführungsbeispiels unter Bezugnahme auf die beigefügten Zeichnungen erläutert. Die darin beschriebenen Merkmale können einzeln oder in Kombination verwendet werden, um bevorzugte Ausgestaltungen der Erfindung zu schaffen. Es zeigen:Further Details and advantages of the invention will become apparent from an embodiment with reference to the attached Drawings explained. The features described therein may be used alone or in combination used to preferred embodiments of the invention create. Show it:
In
Bei
dem dargestellten Ausführungsbeispiel verlaufen
die Anschlußleitungen
In
einer an dem Gehäuse
Die
Hülse
Mit
dem Temperatursensor
Steht
die Tankheizung
In
Besonders
gut geeignet sind Elastomere, beispielsweise Polyurethan-Vergußmasse oder
Silikonelastomere, insbesondere hoch vulkanisierende Silikonkautschuke
(Hoch Temperatur Vernetzend), die auch als HTV-Silikonkautschuk
bezeichnet werden. Derartige Silikonelastomere haben eine gute Wärmeleitfähigkeit,
gute Alterungsbeständigkeit
und auch bei Temperaturwechseln eine gute Elastizität, so daß Beschädigungen
des eingebetteten Temperatursensors
Wie
insbesondere
Bei
dem Temperatursensor
In
Die
Heizelemente werden in Durchgängen
Damit
von den PTC-Heizelementen erzeugte Wärme möglichst gut an Harnstofflösung in
dem Harnstofftank abgeführt
werden kann, hat die Tankheizung
Nach
dem Einbringen des Montagerahmens mit den von ihm gehaltenen PTC-Heizelementen
in das innere Gehäuse
Bei
den Wärmeverteilelementen
Durch
die Verwendung von Edelstahlrohren als Wärmeverteilelemente
Zum
Verpressen haben die Ausleger
Zum
Schutz vor der korrosiven Harnstofflösung wird der in Figur dargestellte
innere Heizungsteil
Um
ein rasches Auftauen von Harnstoffeis in dem Ansaugrohr
In
Weitere
Durchgänge
Über die
rohrförmigen
Ausleger
In
Der
Zentralkörper
- 11
- Tankheizungtank heater
- 22
- KunststoffgehäusePlastic housing
- 3, 43, 4
- Anschlußleitungenleads
- 55
- Ansaugrohrintake
- 66
- inneres Heizungsteilinner Heating part
- 77
- Stützkörpersupport body
- 88th
- inneres Gehäuseinner casing
- 99
- zentrale Öffnungcentral opening
- 1010
- Anschlußblecheconnecting plates
- 1111
- Wärmeverteilelementeheat distributing
- 1212
- Auslegerboom
- 1313
- Erhebungsurvey
- 1414
- O-RingO-ring
- 1515
- Hülseshell
- 1616
- Hülsenbodensleeve base
- 1717
- Temperatursensortemperature sensor
- 1818
- Stegweb
- 1919
- Kunststoffplastic
- 20, 2120 21
- Anschlußleitungenleads
- 2828
- Durchgangpassage
- 2929
- Verbindungsleitungconnecting line
- 3030
- Durchgangpassage
- 3131
- Armepoor
- 3232
- Zentralkörpercentral body
Claims (31)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005036430A DE102005036430B4 (en) | 2005-08-03 | 2005-08-03 | tank heater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005036430A DE102005036430B4 (en) | 2005-08-03 | 2005-08-03 | tank heater |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102005036430A1 true DE102005036430A1 (en) | 2007-02-15 |
DE102005036430B4 DE102005036430B4 (en) | 2011-05-05 |
Family
ID=37680860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102005036430A Expired - Fee Related DE102005036430B4 (en) | 2005-08-03 | 2005-08-03 | tank heater |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102005036430B4 (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008048798A1 (en) * | 2008-09-24 | 2010-03-25 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Tank for a reducing agent with heating devices |
DE102009012983A1 (en) | 2009-03-12 | 2010-09-23 | Eichenauer Heizelemente Gmbh & Co. Kg | Heating device for motor vehicle, has metal housing, in which positive temperature coefficient-element is arranged, where metal housing is molded with plastic cladding |
DE102009036260A1 (en) * | 2009-08-05 | 2011-02-10 | Daimler Ag | Storage tank for fuel i.e. aqueous urea solution, of e.g. petrol engine, of motor vehicle, has exhaust gas after-treatment system and heat conducting element that protrudes into tank, where conducting element is partially formed from metal |
EP2341224A1 (en) * | 2009-12-24 | 2011-07-06 | DBK David + Baader GmbH | Melting tank, heating module and tank system |
WO2011138514A2 (en) | 2010-05-03 | 2011-11-10 | Mgi Coutier | Fluid reservoir having a heating reserve bowl |
WO2012080129A1 (en) * | 2010-12-14 | 2012-06-21 | Robert Bosch Gmbh | Tank insert module, liquid tank |
DE102011012441A1 (en) * | 2011-02-25 | 2012-08-30 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Method for heating a conveyor system |
EP2506661A1 (en) | 2011-04-02 | 2012-10-03 | Eichenauer Heizelemente GmbH & Co. KG | Electric heating device |
WO2012130493A1 (en) * | 2011-03-25 | 2012-10-04 | Robert Bosch Gmbh | Functional unit for a reducing agent storage tank and reducing agent storage tank |
WO2013087672A1 (en) * | 2011-12-15 | 2013-06-20 | Robert Bosch Gmbh | Reducing agent heater |
DE102012011280A1 (en) | 2012-06-08 | 2013-12-12 | Eichenauer Heizelemente Gmbh & Co. Kg | Electrical heating device for liquid tank, has upper wall and bottom wall connected over side walls, which are plastically deformed by pressing housing, where plastic deformation of side walls is increased in direction of side walls |
DE102012104917A1 (en) | 2012-06-06 | 2013-12-12 | Eichenauer Heizelemente Gmbh & Co. Kg | Heating device i.e. electrical heating device, for use in liquid tank to heat chemically aggressive fluid, has wedge-shaped compensating element whose thickness decreases in longitudinal direction of opposite side walls |
DE102013100973A1 (en) | 2012-10-02 | 2014-04-03 | Eichenauer Heizelemente Gmbh & Co. Kg | Electrical heating device for heating liquid in fluid tank, has sheet cushion squeezed into housing, and plastically deformed during pressing housing, where side walls are plastically deformed by pressing housing |
DE102015120250B3 (en) * | 2015-11-23 | 2017-04-13 | Eichenauer Heizelemente Gmbh & Co. Kg | Method for producing a tank heater and tank heater |
Citations (5)
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---|---|---|---|---|
DE4432577A1 (en) * | 1994-09-13 | 1996-03-14 | Siemens Ag | Assembly for introduction of liq. into selective catalytic redn. assembly |
US6063350A (en) * | 1997-04-02 | 2000-05-16 | Clean Diesel Technologies, Inc. | Reducing nox emissions from an engine by temperature-controlled urea injection for selective catalytic reduction |
DE20021400U1 (en) * | 2000-12-18 | 2001-03-22 | Purem Abgassysteme Gmbh & Co | Exhaust gas purification system for the denitrification of exhaust gases from an internal combustion engine on an SCR catalytic converter |
DE10148880A1 (en) * | 2000-10-06 | 2002-08-14 | Toyota Motor Co Ltd | Internal combustion engine exhaust control system and method |
DE20121115U1 (en) * | 2001-12-21 | 2003-04-24 | Eichenauer Gmbh & Co Kg F | Electrical heating arrangement used for heating corrosive liquid, especially a urea solution, in vehicle comprises heating element sealed by metallic housing coated with inorganic non-metallic layer containing boron, carbon and/or silicon |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
HU913039D0 (en) * | 1991-09-23 | 1992-01-28 | Rudi Drevensek | Fuel pre-heater |
-
2005
- 2005-08-03 DE DE102005036430A patent/DE102005036430B4/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4432577A1 (en) * | 1994-09-13 | 1996-03-14 | Siemens Ag | Assembly for introduction of liq. into selective catalytic redn. assembly |
US6063350A (en) * | 1997-04-02 | 2000-05-16 | Clean Diesel Technologies, Inc. | Reducing nox emissions from an engine by temperature-controlled urea injection for selective catalytic reduction |
DE10148880A1 (en) * | 2000-10-06 | 2002-08-14 | Toyota Motor Co Ltd | Internal combustion engine exhaust control system and method |
DE20021400U1 (en) * | 2000-12-18 | 2001-03-22 | Purem Abgassysteme Gmbh & Co | Exhaust gas purification system for the denitrification of exhaust gases from an internal combustion engine on an SCR catalytic converter |
DE20121115U1 (en) * | 2001-12-21 | 2003-04-24 | Eichenauer Gmbh & Co Kg F | Electrical heating arrangement used for heating corrosive liquid, especially a urea solution, in vehicle comprises heating element sealed by metallic housing coated with inorganic non-metallic layer containing boron, carbon and/or silicon |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008048798A1 (en) * | 2008-09-24 | 2010-03-25 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Tank for a reducing agent with heating devices |
DE102009012983A1 (en) | 2009-03-12 | 2010-09-23 | Eichenauer Heizelemente Gmbh & Co. Kg | Heating device for motor vehicle, has metal housing, in which positive temperature coefficient-element is arranged, where metal housing is molded with plastic cladding |
DE102009036260A1 (en) * | 2009-08-05 | 2011-02-10 | Daimler Ag | Storage tank for fuel i.e. aqueous urea solution, of e.g. petrol engine, of motor vehicle, has exhaust gas after-treatment system and heat conducting element that protrudes into tank, where conducting element is partially formed from metal |
EP2341224A1 (en) * | 2009-12-24 | 2011-07-06 | DBK David + Baader GmbH | Melting tank, heating module and tank system |
WO2011138514A2 (en) | 2010-05-03 | 2011-11-10 | Mgi Coutier | Fluid reservoir having a heating reserve bowl |
CN103261607A (en) * | 2010-12-14 | 2013-08-21 | 罗伯特·博世有限公司 | Tank insert module, liquid tank |
WO2012080129A1 (en) * | 2010-12-14 | 2012-06-21 | Robert Bosch Gmbh | Tank insert module, liquid tank |
US9702287B2 (en) | 2010-12-14 | 2017-07-11 | Robert Bosch Gmbh | Tank insert module, liquid tank |
CN103261607B (en) * | 2010-12-14 | 2016-05-11 | 罗伯特·博世有限公司 | Tank loading type module, liquid tank |
US9032712B2 (en) | 2011-02-25 | 2015-05-19 | Emitec Gesellschaft Fuer Emissionstechnologie Mbh | Method for heating a delivery system and motor vehicle having a delivery system |
DE102011012441A1 (en) * | 2011-02-25 | 2012-08-30 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Method for heating a conveyor system |
WO2012130493A1 (en) * | 2011-03-25 | 2012-10-04 | Robert Bosch Gmbh | Functional unit for a reducing agent storage tank and reducing agent storage tank |
DE102012102845A1 (en) | 2011-04-02 | 2012-10-04 | Eichenauer Heizelemente Gmbh & Co. Kg | Electric heater |
EP2506661A1 (en) | 2011-04-02 | 2012-10-03 | Eichenauer Heizelemente GmbH & Co. KG | Electric heating device |
WO2013087672A1 (en) * | 2011-12-15 | 2013-06-20 | Robert Bosch Gmbh | Reducing agent heater |
EP2791483B1 (en) | 2011-12-15 | 2016-06-01 | Robert Bosch GmbH | Heating device for reducing agent |
DE102012104917A1 (en) | 2012-06-06 | 2013-12-12 | Eichenauer Heizelemente Gmbh & Co. Kg | Heating device i.e. electrical heating device, for use in liquid tank to heat chemically aggressive fluid, has wedge-shaped compensating element whose thickness decreases in longitudinal direction of opposite side walls |
DE102012104917B4 (en) | 2012-06-06 | 2023-03-23 | Eichenauer Heizelemente Gmbh & Co. Kg | Electrical heating device |
DE102012011280A1 (en) | 2012-06-08 | 2013-12-12 | Eichenauer Heizelemente Gmbh & Co. Kg | Electrical heating device for liquid tank, has upper wall and bottom wall connected over side walls, which are plastically deformed by pressing housing, where plastic deformation of side walls is increased in direction of side walls |
DE102013100973A1 (en) | 2012-10-02 | 2014-04-03 | Eichenauer Heizelemente Gmbh & Co. Kg | Electrical heating device for heating liquid in fluid tank, has sheet cushion squeezed into housing, and plastically deformed during pressing housing, where side walls are plastically deformed by pressing housing |
DE102013100973B4 (en) | 2012-10-02 | 2022-08-11 | Eichenauer Heizelemente Gmbh & Co. Kg | Electrical heating device |
DE102015120250B3 (en) * | 2015-11-23 | 2017-04-13 | Eichenauer Heizelemente Gmbh & Co. Kg | Method for producing a tank heater and tank heater |
Also Published As
Publication number | Publication date |
---|---|
DE102005036430B4 (en) | 2011-05-05 |
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